Answer:
The Physical Properties of Chlorine are as follows:
Color: Greenish-yellow.
Phase: Gas.
Odor: Disagreeable, suffocating smell.
Density: About two and one-half times as dense as air.
Solubility: Is soluble in water. ...
Boiling Point: The boiling point of chlorine is –34.05°C.
Melting Point: The melting point is –101°C.
Explanation:
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The right answer for the question that is being asked and shown above is that: "B 1.5 X 1-^-5 ppm." A 250-mL aqueous solution contains 1.56 mc025-1.jpg 10–5 g of methanol and has a density of 1.03 g/mL. The concentration in ppm is that <span>1.5 X 1-^-5 ppm</span>
First, let us define Electronegativity. Electronegativity is "the ability of an atom to attract electrons." In addition, electronegativity increases in elements from left to right, while on the other hand, electronegativity decreases from top to bottom in an element group. It decreases because the atomic radius increases as we go downward an element in the group.
The chemical formula for quartz is SiO₂. It has a molar mass of 60.08 g/mol. We use this to find the moles of quartz.
Moles of quartz = 1.90 g(1 mol/60.08 g) = 0.03162 moles
From the chemical formula, there are 2 moles of Oxygen per 1 mole of SiO₂.
Moles of oxygen = 0.03162 moles*2 = 0.063249 moles O
We use the Avogadro's number, 6.022×10²³ atoms/mole, to find the number of oxygen atoms.
0.063249 moles O * 6.022×10²³ atoms/mole = <em>3.81×10²² atoms of oxygen</em>
